Combined valve and filler cap



April 15, 1924. '1,495.30g-802 C. L. DAVIS COMBINED VALVE AND FILLER CAPFiled Jan. 6 1923 Patented Apr. 15, 1924.

UNITED NSTATES CHARLES L. DAVIS, F

TERLTON, OKLAHOMA.

COMBINED AND'FILLER CAP.

Application filed January 6, 1923. Serial No. 611,131.

To all whom t mag/concern:

Be it known that l, CHARLES L. DAVIS, a citizen of the United States,residing at 'l`erlton, in the county of Pawnee and State of Oklahoma,have invented certain new and useful lmprovements'in `Combined Valvesand Filler Caps, of which the following is a specification. y

This invention relates to a combinedvalve and ller cap4 for the tanks ofgravity feed fuel systems, and has vfor an-object to provide a fillercap as specified, kby means of which air under pressure may be forcedinto the tank for forcing fuel therefrom.

A further object of the invention is to provide a combined filler capand valve as specified, which is particularly designed for use inconnection with the tanks of the fuel supply systems of motor vehicleswherein the fuel is fed by gravity from the tank to` the carbureter, andby means of which combined ller cap and valve, air under pressure may beforced into the tank when the gasoline therein becomes relatively low orwhere the level of gasoline in the tank becomes lower than thecarbureter, and it is necessary to apply pressure to the gasoline tocause it to properly feed to the carbureter such as when climbing up anincline.

A further object of myyinvention is to provide a combined ller cap andvalve as specified, whereby air may be introduced into a gas supply tankunder pressure, and also to provide means whereby the air may bereleased from said tank so as not to retain too much pressure on ythetank when the gas will feed by gravity. n

Other objects and advantages of the invention will become apparentduring the course of the following description.

ln the drawings, wherein like numerals are employed to designate likeparts throughout the same,

Figure 1 is a top plan view of my improved combined valve and fillercap,

Figure 2 is a bottom plan view of the same, and

Figure 3 is a section taken substantially on the line 3-3 and looking inthe direction of the arrow.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral 5 designates any formof gas supply tank, as is commonly found on Ford automobiles. The tank 5is provided on its top with an aperture, said aperture having adepending threaded sleeve 6, which is adapted to receive thescrewthreaded capy 7. A suitable washer or gasket 8 is interposed between theflange of the cap 7 and the top of the -tank 5, so as to .prevent theescape of the air'when it has been introduced into the tank underpressure, age of the gas from withinthe tank. t

Iny accordance with my invention, the cap 7 is provided with the bosses9, which provide means for rotating the cap, o-ne of said bosses beingprovided with a threaded aperture 10 through which is adapted to bescrewthreadedly mounted a valve 11, such asis commonly used on pneumatic`inner tubes of automobiles, so that the usual connection 12 may beconnected to the valve stem 11, whereby air may be introduced into thetank V5 luider pressure. f

A curved springy metal member 13, is carried by means of a bolt 14 whichis provided with `a thumb nut 15, as is` clearly illustrated in yFigure3 of the drawings. The thumb nut 15 extends through an aperture formedin the opposite boss 9 formed on the cap' 7, said thumb nut 15 beinglocated on the top of said cap, while Jthe head of the bolt let isvpositioned within the tank. The opposite end of the spring member 13 isprovided with a. needle va ve 16 eX- tending upwardly, and adaptedto bereceived withiny the bore of the valve 11. A small washer 17 is alsocarried by the arm 13, so that when the needle valve is seated in itsvalve, leakage of air will be positively prevented. It will of course beunderstood, that the springy member 13 when positioned as illustrated infull lines in Figure 3 of the drawings, will at all times hold theneedle valve 16 seated, but the sprin member 13 is of sufficientresiliency to a ow the pres# ,sure of air introduced by means of thelconnection 12, through the valve 11, to open or push the needle valveand arm downwardly so as to permit the entrance of air, vbut as soon asthe pressure is released, the member 13 will immediately urge the needlevalve 16 upwardly so as to close the valve 1l.

In use, the cap 7 is provided with my invention as described, thumb nut15 is loosened suflciently to allow the spring member 13 and the bolt 14down as illustrated in dotted lines in Figure 3 of the drawings, so thatthe tank and fuel contents thereof will operate as noror to prevent theleak-y and normally the n to drop f mally occurs in thel usualgravitytank sys;

tem ofautomobile'. fuel feeding, `However;V

fuel Within the tanl;

as soon as the supply of bethat the machine so as. to assume, aposition. asisA clearlyl illus-` trated inheavy lines in ings. Theordinary form of automobile tire pump may tank under pressure, valve 16open so as to:alloW.-the.entrance,of the air.

immediately Aclose due to the veffect :ofthe arm 13,V andthe gasor.other: fuelwvilllbe forced through the carbureter. Words, thisinventionS-is adapted 'to `change the ordinary gravity feedA intoaJ.force feed system When it `becomes necessary to dorso.. It is to beunderstood that ,thenformsofimy.v inventionfherewith shown anddescribed".fissv to ,dra-w thespring. arm. member 13 andthe .needle.valve,-.16up\ardly Figui@ 30f the draws,

'hen be connected to,.th`e,. valve f 11 and air may'be introduced Withinthe said-1 air forcing the` vided with; a-va-lve Seat However, as soon.as the. supply of.. airhas been cutoif the needlevalve 16 Will.

In other to kbetaken as the.. preferredembodiment of the,s gkrxieyandthatv variousicyianges in: the sliape,size and arrangement of parts maybe resorted to, Without departing from the spirit'offmy inventionJ orthe scope of the subjrn'medL claims.

Having thus described my whatl claim is.;-

1. A filler cap fr tanks comprising a body having spa-cedY radiallymanipulating bosses formed; tljiereon, each boss being `provided; withya r.threzuied Open: ingsadjacent .to-.the periphery hollow. threaded;valve casing'. .fitted in Vone invention,

of. said openings, ,ani f adg'*bistable 'bolt fitted v in theVVother;of:.'said;` openings, ,aj needle valve arranged to fit 1n said.valve casing, and a.,

resilient arm. carryingigs-id needlevalveV and supported by, said:adjustable bolt.

2'. Aspaneiiarticle. of manufacture, av filler, cap comprisjingnV a;vbody spaced open-ings therein,

openings, ancadjf'usmbleimember ittedin the other opening, au valve,body for 1, the.- valve.

seat, and; a.resi'lientg armbarrying, saidvalve bbdy and supportedxby,said member.v

In; testimony ,wheneoftl 'aiX my signature...

impresence-I;oitw witnesses;

" L., DAVIS.

Witnesses.; v G-.i C); Soru-mv.,r WY.- Dioxins extending v of. the ycap, a..

having apair ofl a. valve, casing prof. fitted 1n one of saidA

